Novel disc tube type reverse osmosis assembly

Abstract

The invention belongs to the field of water treatment equipment, and particularly relates to a novel disc tube type reverse osmosis assembly which comprises a membrane shell, a membrane core in the membrane shell, an upper flange and a lower flange, the upper flange and the lower flange are arranged at the two ends of the membrane shell respectively, and the membrane core comprises a plurality of flow guide discs which are combined in an overlapped mode; one side of the disc surface of the flow guide disc is provided with a plurality of convex points and sealing ring grooves, and the other side of the disc surface is welded with a reverse osmosis diaphragm; O-shaped rings are mounted in the sealing ring grooves to seal the diaphragms, every two adjacent flow guide discs are connected in a clamped mode through positioning bosses on inner holes of the flow guide discs, water production channels are formed in the inner holes of the stacked flow guide discs, an outer ring table is arranged on the peripheries of the disc faces of the flow guide discs, and two notches are formed in the outer ring table. Through holes are formed in the two sides of the membrane shell and correspond to the two notches to form a water inlet and a concentrated solution outlet. According to the invention, the water inlet and outlet mode of an existing disc tube type reverse osmosis flat plate assembly is changed, the structure of an existing product is changed, the pollution resistance is stronger, the concentration polarization phenomenon is greatly reduced, and the integration degree is higher.

Description

technical field [0001] The invention belongs to the field of water treatment equipment, and in particular relates to a novel dish tube type reverse osmosis component. Background technique [0002] At present, the basic structure of the disc tube type reverse osmosis flat membrane module is a membrane shell, the upper and lower flanges at both ends of the membrane shell, the central tie rod inside the membrane shell, and several diaphragms and guide plates installed on the central tie rod. Membrane core. Usually choose to open the water inlet at the bottom of the membrane shell, and the inlet water flows back and forth on the surface of the deflector plate under the pressure, and the water that passes through the membrane is the produced water, and the water that does not pass through the membrane is the concentrated solution, and the produced water and the concentrated solution It is discharged from the concentrated liquid outlet and the product water outlet opened on the t...

AI Technical Summary

Problems solved by technology

This structure leads to a long flow from water inlet to water outlet, and the flow can reach tens of meters, so the membrane is easy to be polluted, resulting in obvious concentration polarization

On the other hand, the structure of the central tie rod cannot guarantee the internal preload of the membrane shell, and at the same time, there are a series of disadvantages that affect stability and economy, such as complicated installation and increased weight.

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